360556-72-5Relevant academic research and scientific papers
Pd-catalyzed cross-electrophile Coupling/C-H alkylation reaction enabled by a mediator generatedviaC(sp3)-H activation
Jiang, Hang,Wu, Zhuo,Zhang, Yanghui
, p. 8531 - 8536 (2021/07/02)
Transition-metal-catalyzed cross-electrophile C(sp2)-(sp3) coupling and C-H alkylation reactions represent two efficient methods for the incorporation of an alkyl group into aromatic rings. Herein, we report a Pd-catalyzed cascade cross-electrophile coupling and C-H alkylation reaction of 2-iodo-alkoxylarenes with alkyl chlorides. Methoxy and benzyloxy groups, which are ubiquitous functional groups and common protecting groups, were utilized as crucial mediatorsviaprimary or secondary C(sp3)-H activation. The reaction provides an innovative and convenient access for the synthesis of alkylated phenol derivatives, which are widely found in bioactive compounds and organic functional materials.
Synthesis of novel H-shaped chromophores
Shi, Jie-Ping,Wu, De-Lin,Ding, Yong,Wu, Dong-Hua,Hu, Hong-Wen,Lu, Guo-Yuan
experimental part, p. 2770 - 2777 (2012/04/23)
A series of H-shaped chromophores with two parallel and non-conjugated D-π-A units have been synthesized, in which a 9,10-dihydroanthracene was employed as molecular backbone. The synthesis of these H-shaped chromophores 9a-11a was accomplished via an eight-step reaction, including double Claisen rearrangement, hydroboration-oxidation, Rieche formylation reaction, Knoevenagel condensation and Corey-Fuchs reaction, with a total yield about 12.5%. The corresponding mono-D-π-A unit compounds 9b-11b were also prepared in a similar procedure for the purpose of comparison. Crystal structures of three intermediates 5a, 7a and 8a were measured, which demonstrate that the two D-π-A units in a single H-shaped chromophore molecule are nearly arranged at the same direction. The studies of UV-vis spectra and the solvatochromic method indicate that the molecular second-order polarizabilities values (μβ) of H-shaped chromophores are remarkably increased compared with the corresponding mono-D-π-A unit reference compounds, without causing a large shift of the absorption band to longer wavelength.
Ligational properties of two new phenolic aza cages towards proton and alkali metal ions - A theoretical and an experimental approach
Dapporto, Paolo,Formica, Mauro,Fusi, Vieri,Giorgi, Luca,Micheloni, Mauro,Pontellini, Roberto,Paoli, Paola,Rossi, Patrizia
, p. 1763 - 1774 (2007/10/03)
Molecular Dynamics (MD) simulations were performed on several species (anion, zwitterion, and neutral metal complexes) of two phenolic aza cages (L1 and L2) in aqueous solution. The anionic species of the smaller L1 ligand appears to be able to selectivel
